While out on their rounds one day, Tsugumi and Hisui learn of the existance of a book written by a prostitute from Yokohama's redlight district. Hisui seems especially desperate to get his hands on this book and when Tsugumi learns the reason why she becomes determined to help him. When Tsugumi discovers that Shiginuma Shouko, wife of the shady owner of the Nachtigal dance hall, she finds herself stepping back into potentially dangerous territory alone.
Don't get involved with him. 
Never, no matter what!
.لا تتورّطي معه
!أبدًا، مهما كان
Lass dich nicht mit ihm ein.
Niemals, unter keinen Umständen.
No te involucres con él.
¡Pase lo que pase!
No te involucres con él.
¡Pase lo que pase!
Je ne peux pas t’impliquer
dans cette histoire…
Non avvicinarti a quell'uomo.
Não se meta com ele,
nunca, de jeito nenhum!
Не связывайся с ним. Ни
за что. Ни в коем случае!